Letter 10047

Cleaning & preservative methods using chemicals for stone masonry 

Dear Sir,

We require chemical to clean 50 years old Ashlar fine masonry heritage buildings made of Basalt/granite & sandstone rock up to its true colour. So kindly guide us for the required chemicals, its application procedure, pre application requirements. Also guide us to avoid further preservative method/chemicals to maintain the true colour for atleast some decades.

Very Urgent.

Thanks & regards,

Rakesh Oswal
Shapoorji Pallonji & Co. Ltd. - Pune, Maharashtra, India

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